% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Burger:622949,
      author       = {Burger, Silvana and Forster, Carola and Spurk, Christoph
                      and Hummel, Marc and Olowinsky, Alexander and Beckmann,
                      Felix and Moosmann, Julian and Schmidt, Michael},
      title        = {{P}rocess zone morphology and melt dynamics in laser remote
                      fusion cutting ({RFC}) revealed by high-speed {X}-ray
                      imaging},
      journal      = {Optics and lasers in engineering},
      volume       = {in press},
      issn         = {0143-8166},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {PUBDB-2025-00585},
      pages        = {108756 -},
      year         = {2024},
      note         = {online first},
      abstract     = {Laser material processing procedures yield numerous
                      benefits, as non-contact manipulation of the workpiece, high
                      precision, and extensive automation capabilities. For metal
                      joining, laser beam welding is a widely used process
                      employed in industry, for example in automotive body
                      construction and in the production of electronic components.
                      With the same optical setups as usually used for laser beam
                      welding, a melt ejection can be induced in sheet metal,
                      resulting in the formation of a cut. This enables laser
                      remote fusion cutting (RFC) based on a melt ejection without
                      the need for tools near the process zone. A comprehensive
                      understanding of the conditions and mechanisms causing the
                      melt ejection or preventing it is yet to be achieved.In this
                      study, in-situ observations of the process zone in RFC were
                      performed using high-speed X-ray imaging with synchrotron
                      radiation, achieving frame rates up to Image 1 for steel
                      samples and Image 2 for AlMg3 samples. Key features of the
                      process zone morphology are extracted by means of image
                      processing from the recordings, such as the angle of front
                      wall inclination or the ejection direction for different
                      process parameters. The front wall angle for RFC is in line
                      with an established model for the front wall angle in laser
                      beam welding. Propagation-based phase-contrast imaging
                      reveals the melt film at the cutting front, showing a
                      decrease of the melt film thickness with increasing feed
                      velocities. Melt dynamics at transitions between process
                      states of cutting and not cutting could be observed. The
                      temporal resolution was insufficient to capture humps in the
                      melt film at the front wall in steel samples. These were
                      resolved for AlMg3 samples, confirming that humps at the
                      front wall play an important role in the melt dynamics.},
      cin          = {Hereon},
      ddc          = {530},
      cid          = {I:(DE-H253)Hereon-20210428},
      pnm          = {6G3 - PETRA III (DESY) (POF4-6G3) / DFG project
                      G:(GEPRIS)236616214 - SFB 1120: Bauteilpräzision durch
                      Beherrschung von Schmelze und Erstarrung in
                      Produktionsprozessen (236616214)},
      pid          = {G:(DE-HGF)POF4-6G3 / G:(GEPRIS)236616214},
      experiment   = {EXP:(DE-H253)P-P07-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001436419500001},
      doi          = {10.1016/j.optlaseng.2024.108756},
      url          = {https://bib-pubdb1.desy.de/record/622949},
}